The half-orc are originally progeny of human and orc procreation though half-orcs can mate with either species and create half-orc children. Half-orcs occupy a border in society. Although orcs are recognized as a civilized race under the Galifar Code of Justice they are none-the-less looked down upon by the more civilized races and the half-orc inherits enough of their savagery to discomfort many by their sheer presence though the human ancestory in them craves social structure and comforts. Half-orcs are fairly rare in Eberron though the half-orcs of House Tharashk in The Shadow Marches have developed a society of their own fueled by their knack for tracking things down, most notably dragonshards.